Quite simply, they can’t quarantine due to work. I imagine that if the quarantine remains a requirement they’ll be entitled to their money back, as the terms of their travel will be materially different to those under which they booked their holiday.
If the idea of the quarantine is binned off...
That's interesting. My wife's parents, sister, brother-in-law and niece are due to Orlando (Disney et al) in August. We toyed with the idea of going ourselves, but elected to take the kids on our own next year.
That's looking like a good move as it stands. Understandably, they really don't want...